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California bulrush

Schoenoplectus californicus · Aquatic plants

California bulrush: A stand of it

A stand of it · Photo: Felipe Horton / CC BY

NativeEmergent

Also called Scirpus californicus, Giant bulrush, Tule

How to identify California bulrush

  • Very tall, round to bluntly triangular stems up to 12 feet
  • Stems firm, gray green
  • Large, drooping, branched flower clusters near the top
  • Grows from thick rhizomes

Similar plants

Hardstem bulrush has smaller, tighter flower clusters and rounder stems; softstem bulrush stems crush easily.

Growth profile

Growing seasonShoots emerge in spring, flowers in summer, stems persist into winter and rhizomes overwinter.
Starts growingAbout 55 F water; full sun
LightNeeds full sun
DepthShoreline to about 6 feet of water
How it spreadsRhizomes and seeds
HabitatShallow to moderately deep marshes and lake margins in mild climates.

Why it matters in a lake

Very rare in the region, at the northern edge of its range. Dense stands provide shoreline protection and bird habitat.

Where it is found

  • Idaho: Rare
  • Oregon: Rare
  • Wyoming: Not recorded

Classification

KingdomPlantae
PhylumTracheophyta
ClassMagnoliopsida
OrderPoales
FamilyCyperaceae
Scientific nameSchoenoplectus californicus

Need a hand?

Is it taking over your lake?

We identify what is growing, map how much of it there is and build a control plan that targets it without harming the rest of the lake.

Idaho / Wyoming (208) 501-4531Oregon (541) 280-0596